Why does the chromecast client declare its height and width as 720p to the receiver app?

Question

Why does the chromecast declare its client height and width to be 720p to the receiver app server?

I am trying to display non-video content and assumed I would be able t

Answer 1

While the UI layer of Chromecast currently only supports 1280x720, the Google Cast team recommends that developers do not hardcode this screen size as it might change in the future.

In a response to a similar question in the post below John Affaki wrote: "Right now, we have a limitation where the "UI" layer is at 720p even though video can run at 1080p. It's on our roadmap to revisit this, so I'm suggesting that you build your app in a way that will just work if this gets fixed."

https://plus.google.com/100147701757803136741/posts/JDhtJTw7jz5